CVE-2021-25832

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A heap buffer overflow vulnerability inside of BMP image processing was found at [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v6.0.0. Using this vulnerability, an attacker is able to gain remote code executions on DocumentServer.

Se encontró una vulnerabilidad de desbordamiento del búfer de la pila dentro del procesamiento de imágenes BMP en el módulo [core] de ONLYOFFICE DocumentServer versiones v4.0.0-9-v6.0.0. Con esta vulnerabilidad, un atacante puede conseguir ejecuciones de código remota en DocumentServer

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-22 CVE Reserved
2021-03-01 CVE Published
2024-07-04 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (7)

URL	Tag	Source
https://github.com/ONLYOFFICE/DocumentServer	Product

URL	Date	SRC
https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25832	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://github.com/ONLYOFFICE/core	2021-03-15
https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L424	2021-03-15
https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/ASCOfficePPTXFile/Editor/BinaryFileReaderWriter.cpp#L428	2021-03-15
https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/DesktopEditor/cximage/CxImage/ximabmp.cpp#L354	2021-03-15
https://github.com/ONLYOFFICE/core/blob/v6.0.1.15/DesktopEditor/cximage/CxImage/ximabmp.cpp#L358	2021-03-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Onlyoffice Search vendor "Onlyoffice"		Document Server Search vendor "Onlyoffice" for product "Document Server"				>= 4.0.0-9 <= 6.0.0 Search vendor "Onlyoffice" for product "Document Server" and version " >= 4.0.0-9 <= 6.0.0"		-		Affected